Data administration
Manage source datasets, import CSV files, and review coverage and validation. Changes apply to dashboards in this browser.
Import source data
SunGuide chronology or UrbanSDK CSV · saved in this browser. Select all chronology years together; imports replace that source’s snapshot. Other sources and the 2022–2024 summaries remain.
Included source snapshots
Source coverage and validation
Event_Chronologies created in 2025.rpt.csv · Event_Chronologies created in 2026.rpt.csv
5,571,914 source records · 59 rejected · 0 duplicates skipped · 5,571,857 report entries reconstructed
Event date is the earliest observed chronology timestamp (America/New_York), not a confirmed incident onset. Reports can include entries beyond the year in their filename.
Response is earliest valid same-unit Road Ranger dispatch-to-arrival pair per event (0–1,440 min); 80,695 events have usable response evidence. 0 invalid pairs excluded.
Severity is the highest recorded ATIS category, not an injury or fatality measure. Recommendations use county/corridor areas; auxiliary coordinate, vehicle and environment tables in report exports are excluded. Exact staging sites are not inferred.
DataLog.csv · DataLog2.csv
1,141,820 source records · 0 rejected · 164,339 duplicates skipped · 0 report entries reconstructed
Monthly weekday/hour profiles are historical summaries, not live observations. Missing profiles are not zero traffic.
Speeds are equally weighted by distinct segment-direction profiles; speed limits are not free-flow speeds. TTI is vendor context, not measured delay at individual incidents.